I am looking for are the two round drums that the sanding belt rides on at either end of the 6" belt sander Model #103.0803. I don't know what year it is, but it is an older model. When I start the belt sander you can hear a loud clicking noise while it is running. I started to look for the problem and found that the inserts that are in each end of the drum are loose. I feel at this point it is dangerous to use and want to replace those drums. Thanks, Bill

Review this post.
https://www.askmehelpdesk.com/tools-power-equipment/have-craftsman-sears-belt-sander-model-103-0803-parts-465141.html

If you look at "Check out some similar questions", you will note that parts are no longer available from Sears. Looks like brass bushings or maybe "oilite" was used. A very good Ace hardware store or possibly on-line could help you.

Found this on eBay, hope it helps.

Craftsman 103 0803 6" Belt Disc Sander Owner's Parts Manual 0789 | eBay (http://www.ebay.com/itm/CRAFTSMAN-103-0803-6-Belt-Disc-Sander-Owners-Parts-Manual-0789-/310386645465)